SFX & SFX-L Power Supplies
Shop SFX & SFX-L Power Supplies at Hardvance and shop power supplies designed for efficient delivery, dependable operation and long-term system stability. Compare wattage, efficiency ratings, modular designs and connector support to choose a PSU that fits your build with confidence. Shop trusted brands such as ASUS, Corsair and be quiet! and more.
Corsair SF850 850W ATX Power Supply
In stock
£160.61 inc VAT- 850W SFX power supply for compact SFF PC builds
- 80 PLUS Platinum certification for high efficiency
- Fully modular cabling for improved build flexibility
- ATX 3.1 compliance with 70.8A +12V rail
- 9.2cm top-mounted fan with FDB bearing technology
- Comprehensive protection: over current, over power, over voltage, overheating, short circuit
Corsair SF750 750W Power Supply
In stock
£141.14 inc VAT- 750 W ATX 3.1 fully modular SFX power supply
- 80 PLUS Platinum efficiency certification
- Active cooling with 9.2 cm fan
- Compact dimensions: 125 x 100 x 63.5 mm
- FDB bearing technology for quiet operation
- Comprehensive protection: overheating, over current, over power, over voltage, short circuit
Corsair SF1000 1000W Power Supply
In stock
£180.06 inc VAT- 1000W SFX power supply for SFF PC builds
- 80 PLUS Platinum certification for high efficiency
- ATX 3.1 compliant with fully modular cabling
- 9.2 cm top-mounted fan with FDB bearing technology
- Compact dimensions: 125 x 100 x 63.5 mm
ASUS ROG Loki 850W Platinum White PSU
In stock
£208.40 inc VAT- 850W SFX-L power supply with 80 PLUS Platinum efficiency
- 120mm ARGB-illuminated fan with Aura Sync support
- Fully modular design for clean builds
- ATX 3.0 compatible with 16-pin PCIe Gen 5.0 connector
- 10-year warranty on core operation
ASUS ROG Loki SFX-L 750W Platinum PSU
In stock
£158.78 inc VAT- 750W SFX-L power supply with 80 PLUS Platinum efficiency
- ARGB-illuminated 120mm fan with Aura Sync compatibility
- Fully modular cabling for clean build management
- ATX 3.0 compliant with 16-pin PCIe Gen 5.0 support
- Comprehensive protection: OPP/OVP/UVP/SCP/OCP/OTP
- Compact 125x125x63.5mm form factor for SFF builds
ASUS ROG Loki 850W Platinum PSU
In stock
£198.48 inc VAT- 850W SFX-L form factor with ATX 3.0 compatibility
- 80 PLUS Platinum certified for high efficiency
- 120mm ARGB-illuminated fan with Aura Sync support
- Fully-modular cabling with 6 SATA, 4 Molex, 3 PCIe 8-pin connectors
- ROG heatsinks for extended 0dB operation and improved cooling
- Comprehensive protection: OPP/OVP/UVP/SCP/OCP/OTP
ASUS ROG Strix 1200W Gaming PSU
In stock
£238.18 inc VAT- 1200W ATX 3.1 gaming PSU with 80 PLUS Platinum efficiency
- GaN MOSFET technology delivers up to 30% superior power efficiency
- GPU-FIRST voltage sensing with patented-intelligent voltage stabilizer
- Semi-passive cooling with single top-mounted fan and ROG heatsinks
- Fully-modular design with 20+4 pin ATX, 4+4 pin CPU, and 6+2 pin PCIe connectors
- Native 16-pin PCIe cable supports up to 600W for PCIe Gen 5.0 graphics cards
- 10-year warranty with over current, over power, over voltage, short circuit, and under voltage protection
ASUS ROG Loki 1000W SFX-L PSU
In stock
£208.40 inc VAT- 1000W SFX-L power supply with 80 PLUS Platinum certification
- 12 cm fan with ARGB illumination and Aura Sync compatibility
- Fully modular cabling for clean build and flexible installation
- ATX 3.0 compliant with 16-pin PCIe Gen 5.0 connector for high-end GPUs
- Comprehensive protection suite: OPP/OVP/UVP/SCP/OCP/OTP
ASUS ROG Loki 1200W SFX-L PSU
In stock
£322.55 inc VAT- 1200W SFX-L power supply with 80 PLUS Platinum efficiency
- 12cm ARGB-illuminated fan with 0dB technology for silent operation
- ATX 3.1 compatible with 16-pin PCIe cable for next-gen GPUs
- Fully-modular design with ball bearing fan for extended lifespan
- 10-year warranty covering core operation and RGB lighting
be quiet! SFX L 600W Power Supply
Out of stock
£96.30 inc VAT- 600 W SFX-L power supply for compact PC builds
- 12 cm silent fan with 9.9 dB noise level in silent mode
- 80 PLUS Gold certified with up to 92% efficiency
- Fully modular cables with flat black design
- Supports Mini-ITX motherboards and multi-GPU setups
be quiet! SFX L 500W PSU
Out of stock
£86.66 inc VAT- 12 cm fan with 9.9 dB silent mode
- 500 W SFX form factor with 80 PLUS Gold certification
- Fully modular flat cables for tidy installation
- Supports Mini-ITX and ATX cases via adapter bracket
- 6 SATA and 4 PCIe 6+2 pin connectors
- 92% efficiency with active PFC and 16.7 ms hold time
SFX & SFX-L Power Supplies Buying Guide and FAQ
This SFX & SFX-L Power Supplies range groups units by this feature. Below are the common questions.
What does SFX mean on a power supply?
A SFX PSU has this feature. It is a useful feature to look for when matching a unit to a modern build.
Do I need a SFX power supply?
It depends on your case: SFX units are for small-form-factor builds, while a normal tower takes a standard ATX unit. Match the feature to your parts and case.
What wattage and rating should I pair with it?
Choose wattage around your graphics card, roughly 650 to 750W for mid-range and 850W and up for high-end, and aim for a reputable 80 Plus Gold unit. That combination suits most gaming PCs.